Aspiración manual endouterina (AMEU): Revisión de la literatura y estudio de serie de casos / Manual vacuum aspiration (MVA): a literature review and a case series study

Introducción y objetivo El aborto es la pérdida del producto de la concepción antes de la viabilidad fetal y se considera la principal complicación del embarazo. El objetivo de nuestro trabajo es evaluar los resultados iniciales y en mediano plazo del manejo con Aspiración Manual Endouterina (AMEU) del aborto en el primer trimestre. Métodos Análisis estadístico de serie de casos de 53 pacientes sometidas a AMEU en el Hospital Carlos Van Buren, Valparaíso desde noviembre 2017 a junio 2018 por aborto del primer trimestre. El diagnóstico fue clínico y mediante ultrasonografía. Se efectuó un cuestionario de satisfacción posterior al procedimiento. Resultados Se analizaron 53 pacientes, cuya edad promedio es de 29 años, 19 nulíparas, 34 multíparas, con edad gestacional promedio de 8 semanas. Se analizaron 53 biopsias de contenido intrauterino que resultaron en 53 abortos, de éstos 39 retenidos y 14 incompletos. Se registró un 3% de complicaciones (1 caso de perforación uterina que sólo requirió manejo médico y 1 caso de evacuación incompleta). El cuestionario reveló en una mayoría, el alivio de los síntomas y satisfacción en relación al procedimiento. Conclusión La AMEU es una buena alternativa en el manejo del aborto debido a menores costos, baja tasa de complicaciones y alta eficacia. Los centros que disponen de diversas alternativas para el manejo del aborto deben asegurarse de que la mujer participe activamente en la elección en cuanto a su resolución.

ABSTRACT Introduction and objective Miscarriage is the loss of the product of conception before fetal viability and it is considered the main complication of pregnancy. The main objective of our study is to evaluate initial and midterm reports using Manual Vacuum Aspiration (MVA) as management of first trimester miscarriage. Methods Statistic analysis of a case series of 53 patients submitted to MVA at Hospital Carlos Van Buren, Valparaíso since November 2017 until June 2018 with first trimester miscarriage. The diagnosis was clinical and ultrasonographic. A post procedure satisfaction questionnaire was carried out. Results Fifty-three patients were analyzed, with mean age of 29 years, 19 were nulliparous, 34 multiparous, mean gestational age of 8 weeks. Fifty-three intrauterine biopsies were analyzed, of which 53 were miscarriage, 39 retained sacs and 14 incomplete. We had 3% of complications (1 case of uterine perforation requiring only medical treatment and 1 case incomplete vacuum). The questionnaire revealed in a majority, the relief of symptoms and satisfaction with the procedure. Conclusion MVA is a good alternative in the management of miscarriage due to less costs, low rate of complications and high efficacy. The centres with various alternatives for miscarriage management must ensure that the women actively participates in the election of the resolution.

Use of Topical Lidocaine Gel Plus Paracervical Blockade vs. Paracervical Blockade Alone for Pain Management During Manual Vacuum Aspiration: ADouble-Blind, Randomized, Placebo-Controlled Trial.

OBJECTIVE: To evaluate if the use of lidocaine gel applied to the cervix prior to manual vacuum aspiration (MVA) in addition to paracervical blockade is useful in reducing the level of pain associated with the procedure. METHODS: A total of 88 patients were randomized to receive either 5 mL of lidocaine gel or a placebo applied topically to the cervix 5 minutes prior to paracervical blockade. Both groups received the same drugs for pain control (tramadol hydrochloride, diazepam, and sodium diclofenac). A visual analogue scale (VAS) was used for evaluation of pain intensity at two times: 2 minutes before the blockade (directly after tenaculum clamping of the anterior aspect of the cervix) and after MVA of the uterine cavity. RESULTS: There was a statistically significant difference in pain intensity between the arms of the study. At the first evaluation time (cervical clamping), VAS pain score for the placebo group (control) was 3.6 (2.1) and that for the lidocaine gel group (case) was 1.2 (1.4) (P < 0.01). At the second evaluation time (after manual vacuum aspiration), VAS pain score perceived by the control group was 5.3 (2.5) and that for the case group was 3.1 (1.9) (P < 0.01). The use of lidocaine gel was not associated with any adverse effects of interest. CONCLUSION: The use of a topical lidocaine gel plus paracervical blockade was effective in reducing the intensity of pain associated with MVA when compared to paracervical blockade alone.

Manual Compared With Electric Vacuum Aspiration for Treatment of Molar Pregnancy.

OBJECTIVE: To evaluate uterine evacuation of patients with molar pregnancy, comparing manual with electric vacuum aspiration. METHODS: This is a retrospective cohort study of patients with molar pregnancy followed at the Rio de Janeiro Trophoblastic Disease Center from January 2007 to December 2016. The individual primary study outcomes were incomplete uterine evacuation, uterine perforation, development of uterine synechia, and development of postmolar gestational trophoblastic neoplasia. Secondary endpoints were other features of the perioperative outcomes (operative time, rate of transfusion, hemoglobin change, length of stay) and the clinical course of neoplasia (Prognostic Risk Score, presence of metastases, time to remission, and need for multiagent chemotherapy). RESULTS: Among 1,727 patients with molar pregnancy, 1,206 underwent electric vacuum aspiration and 521 underwent manual vacuum aspiration. After human chorionic gonadotropin normalization, patients with benign molar pregnancy were followed for 6 months and patients treated for gestational trophoblastic neoplasia were followed for 12 months. Baseline risk factors for gestational trophoblastic neoplasia and demographic features were similar between the treatment groups. Uterine synechia developed less frequently after manual vacuum aspiration than after electric vacuum aspiration, 6 of 521 vs 63 of 1,206 (adjusted odds ratio [OR] 0.21, 95% CI 0.09-0.49), despite no differences in the occurrence of incomplete uterine evacuation, 65 of 521 vs 161 of 1,206 (adjusted OR 0.93, 95% CI 0.69-1.27), development of postmolar gestational trophoblastic neoplasia, 90 of 521 vs 171 of 1,206 (adjusted OR 1.26, 95% CI 0.96-1.67), or the need for multiagent chemotherapy, 22 of 521 vs 41 of 1,206 (adjusted OR 0.81, 95% CI 0.73-1.28). CONCLUSION: Manual vacuum aspiration appears to be similar to electric vacuum aspiration for treatment of molar pregnancy and may be associated with less development of uterine synechia.

Acceptability and clinical outcomes of first- and second-trimester surgical abortion by suction aspiration in Colombia.

OBJECTIVE(S): Since partial decriminalization of abortion in Colombia, Oriéntame has provided legal abortion services through 15 weeks gestation in an outpatient primary care setting. We sought to document the safety and acceptability of the second trimester compared to the first-trimester surgical abortion in this setting. STUDY DESIGN: This was a prospective cohort study using a consecutive sample of 100 women undergoing surgical first-trimester abortion (11 weeks 6 days gestational age or less) and 200 women undergoing second-trimester abortion (12 weeks 0 days-15 weeks 0 days) over a 5-month period in 2012. After obtaining informed consent, a trained interviewer collected demographic and clinical information from direct observation and the patient's clinical chart. The interviewer asked questions after the procedure regarding satisfaction with the procedure, physical pain and emotional discomfort. Fifteen days later, the interviewer assessed satisfaction with the procedure and any delayed complications. RESULTS: There were no major complications and seven minor complications. Average measured blood loss was 37.87 mL in the first trimester and 109 mL in the second trimester (p<.001). Following the procedure, more second-trimester patients reported being very satisfied (81% vs. 94%, p=.006). Satisfaction was similar between groups at follow-up. There were no differences in reported emotional discomfort after the procedure or at follow-up, with the majority reporting no emotional discomfort. The majority of women (99%) stated that they would recommend the clinic to a friend or family member. CONCLUSIONS: Second-trimester surgical abortion in an outpatient primary care setting in Colombia can be provided safely, and satisfaction with these services is high. IMPLICATIONS: This is one of the first studies from Latin America, a region with a high proportion of maternal mortality due to unsafe abortion, which documents the safety and acceptability of surgical abortion in an outpatient primary care setting. Findings could support increased access to safe abortion services, particularly in the second trimester.

Patient characteristics and service trends following abortion legalization in Mexico City, 2007-10.

Legal abortion services have been available in public and private health facilities in Mexico City since April 2007 for pregnancies of up to 12 weeks gestation. As of January 2011, more than 50,000 procedures have been performed by Ministry of Health hospitals and clinics. We researched trends in service users' characteristics, types of procedures performed, post-procedure complications, repeat abortions, and postabortion uptake of contraception in 15 designated hospitals from April 2007 to March 2010. The trend in procedures has been toward more medication and manual vacuum aspiration abortions and fewer done through dilation and curettage. Percentages of post-procedure complications and repeat abortions remain low (2.3 and 0.9 percent, respectively). Uptake of postabortion contraception has increased over time; 85 percent of women selected a method in 2009-10, compared with 73 percent in 2007-08. Our findings indicate that the Ministry of Health's program provides safe services that contribute to the prevention of repeat unintended pregnancies.

Cost-effectiveness analysis of alternative first-trimester pregnancy termination strategies in Mexico City.

OBJECTIVE: To assess the comparative health and economic outcomes associated with three alternative first-trimester abortion techniques in Mexico City and to examine the policy implications of increasing access to safe abortion modalities within a restrictive setting. DESIGN: Cost-effectiveness analysis. SETTING: Mexico City. POPULATION: Reproductive-aged women with unintended pregnancy seeking first-trimester abortion. METHODS: Synthesising the best available data, a computer-based model simulates induced abortion and its potential complications and is used to assess the cost-effectiveness of alternative safe modalities for first-trimester pregnancy termination: (1) hospital-based dilatation and curettage (D&C), (2) hospital-based manual vacuum aspiration (MVA), (3) clinic-based MVA and (4) medical abortion using vaginal misoprostol. MAIN OUTCOME MEASURES: Number of complications, lifetime costs, life expectancy, quality-adjusted life expectancy. RESULTS: In comparison to the magnitude of health gains associated with all safe abortion modalities, the relative differences between strategies were more pronounced in terms of their economic costs. Assuming all options were equally available, clinic-based MVA was the least costly and most effective. Medical abortion with misoprostol provided comparable benefits to D&C, but cost substantially less. Enhanced access to safe abortion was always more influential than shifting between safe abortion modalities. CONCLUSIONS: This study demonstrates that the provision of safe abortion is cost-effective and will result in reduced complications, decreased mortality and substantial cost savings compared with unsafe abortion. In Mexico City, shifting from a practice of hospital-based D&C to clinic-based MVA and enhancing access to medical abortion will have the best chance to minimise abortion-related morbidity and mortality.

[Comparative study of manual vacuum aspiration and uterine curettage for treatment of abortion]. / Tratamento do abortamento incompleto por aspiração manual ou curetagem.

OBJECTIVES: To compare manual vacuum aspiration (MVA) and uterine curettage (D and C) for first trimester abortions, in terms of the efficiency of eliminating ovular remnants, frequency of complications, duration of the procedure, and duration of patients' hospitalization. METHODS: In a prospective study, 50 patients in the MVA group and 50 in the D&C group were randomly included. Inclusion criteria were: spontaneous abortion, gestational age less than 13 weeks, patent cervix, endometrial thickness >15 mm, afebrile state, and hemoglobin >10 g/dl. Blood samples were collected before and after surgical procedures for control of hemoglobin levels. Anesthesia was performed in all cases. The time required for each surgical procedure was recorded. RESULTS: Groups were similar regarding gestational age (9.93 +/- 2.40 vs 9.73 +/- 2.58 weeks; p = 0.71) and endometrial thickness before surgery (22.14 +/- 4.80 vs 22.68 +/- 5.68 mm; p = 0.65). There were no surgical or anesthetic complications in either group. Durations of the procedure and of hospitalization were significantly shorter in the MVA group (3.71 vs 10.18 min, p < 0.001, and 14.18 vs 23.06 h, p = 0.03, respectively). Decrease of hemoglobin levels was greater after the surgical procedure in the D and C group (p = 0.02). CONCLUSION: MVA caused less blood loss, was less time consuming, and resulted in shorter hospitalization. However, both surgical procedures were found to be efficient for treatment of incomplete abortions during the first trimester of pregnancy, with no complications after both treatments.

Tratamento do abortamento incompleto por aspiração manual ou curetagem / Comparative study of manual vacuum aspiration and uterine curettage for treatment of abortion

OBJETIVOS: Comparar aspiração manual intra-uterina (AMIU) com curetagem uterina (D&C) em abortamentos no primeiro trimestre no que se refere a eficiência para eliminar restos ovulares do método de aspiração manual intra-uterina com a dilatação e curetagem, ocorrência de complicações (perfuração uterina, laceração cervical, hemorragia pós-tratamento), tempo duração dos procedimentos e tempo de internação das pacientes. MÉTODOS: Cinqüenta pacientes no grupo AMIU e 50 pacientes no grupo D&C foram incluídas prospectivamente de maneira aleatória. Critérios de inclusão: abortamento espontâneo, idade gestacional de até 13 semanas, colo pérvio, espessura endometrial maior que 15 mm, estado afebril, hemoglobina superior a 10 g/dl. Amostras sangüíneas foram colhidas antes e após os procedimentos cirúrgicos para controle dos níveis de hemoglobina; anestesia foi realizada em todos os casos. O tempo para realização de cada procedimento cirúrgico foi cronometrado. RESULTADOS: Os grupos eram semelhantes quanto à idade gestacional (9,93±2,40; 9,73±2,58, p 0,71), espessura endometrial antes da cirurgia (22,14±4,80; 22,68±5,68, p 0,65). Não foram observadas complicações cirúrgicas ou anestésicas em nenhum grupo. Os tempos de realização do procedimento e internação foram significativamente menores nas pacientes do grupo AMIU (3,71; 10,18 min, p < 0,001) (14,18; 23,06 h, p 0,03). O decréscimo nos níveis de hemoglobina após o procedimento cirúrgico foi maior no grupo D&C (p= 0,02). CONCLUSÃO: A AMIU possibilita menor perda sangüínea, requer menor tempo de realização do procedimento e menor tempo de internação hospitalar. Entretanto, ambos os procedimentos cirúrgicos mostraram-se eficientes para o tratamento de abortamentos incompletos no primeiro trimestre da gestação, não havendo complicações após a realização dos tratamentos.

OBJECTIVES: To compare manual vacuum aspiration (MVA) and uterine curettage (D&C) for first trimester abortions, in terms of the efficiency of eliminating ovular remnants, frequency of complications, duration of the procedure, and duration of patients' hospitalization. METHODS: In a prospective study, 50 patients in the MVA group and 50 in the D&C group were randomly included. Inclusion criteria were: spontaneous abortion, gestational age less than 13 weeks, patent cervix, endometrial thickness >15 mm, afebrile state, and hemoglobin >10 g/dl. Blood samples were collected before and after surgical procedures for control of hemoglobin levels. Anesthesia was performed in all cases. The time required for each surgical procedure was recorded. RESULTS: Groups were similar regarding gestational age (9.93 ± 2.40 vs 9.73 ± 2.58 weeks; p = 0.71) and endometrial thickness before surgery (22.14 ± 4.80 vs 22.68 ± 5.68 mm; p = 0.65). There were no surgical or anesthetic complications in either group. Durations of the procedure and of hospitalization were significantly shorter in the MVA group (3.71 vs 10.18 min, p < 0.001, and 14.18 vs 23.06 h, p = 0.03, respectively). Decrease of hemoglobin levels was greater after the surgical procedure in the D&C group (p = 0.02). CONCLUSION: MVA caused less blood loss, was less time consuming, and resulted in shorter hospitalization. However, both surgical procedures were found to be efficient for treatment of incomplete abortions during the first trimester of pregnancy, with no complications after both treatments.

Treating incomplete abortion in El Salvador: cost savings with manual vacuum aspiration.

When manual vacuum aspiration (MVA) was introduced to treat incomplete abortion at a regional training hospital in El Salvador, this study evaluated the impact of replacing sharp curettage with MVA. Hospital cost, length of hospital stay, complication rates and postabortion contraceptive acceptance were compared in a prospective, nonrandomized, controlled study of 154 women assigned to either traditional sharp curettage services or MVA services plus contraceptive counseling. Assignment depended on availability of trained providers. Compared to sharp curettage, use of MVA and associated changes in protocol led to a significant cost savings of 13% and shorter hospital stay of 28%. Dedicated family-planning counseling resulted in a threefold higher rate of contraceptive acceptance. Although the difference in cost was significant, much higher savings could be realized if minimal postoperative stays were implemented for both procedures. Barriers to early discharge include patient expectations, physician attitudes and training and hospital systems administration.

Cost savings of manual vacuum aspiration for endometrial sampling in El Salvador.

Despite the existence of less costly and less invasive techniques to evaluate abnormal uterine bleeding, sharp curettage continues to be the most common form of endometrial sampling in the less developed world. Because manual vacuum aspiration (MVA) equipment is often associated with abortion care in countries where abortion is illegal, many practitioners have been slow to incorporate its use for other gynecological conditions. In this study, MVA was introduced in a large teaching hospital in El Salvador as an alternative for patients with abnormal uterine bleeding. Hospital cost, length of stay and complication rates were compared in a prospective, nonrandomized controlled study of 163 patients assigned to either traditional sharp curettage or MVA services. Patients were assigned to each group depending on the availability of trained providers. Methodologies for cost-savings analysis were modified to obtain more precise cost estimates. Use of MVA was associated with a significant cost savings of 11% and a hospital stay that was 27% shorter as compared to sharp curettage. Cost savings could be much higher if MVA was institutionalized as an ambulatory procedure with minimal or no preoperative evaluation and postoperative stay.

Avaliaçäo de diferentes técnicas de esvaziamento uterino como fator de risco para neoplasia trofoblástica invasora e metastática / Evaluation of different technics of uterine evacuation as a risk factor for invasive and metastatic trophoblastic neoplasms

Avaliou-se a influência da forma de esvaziamento uterino: curetagem ou vacuoaspiraçäo e do uso de ocitócico sobre a incidência de neoplasia trofoblástica gestacional invasora/metastática entre pacientes com diagnóstico de abortamento molar. O estudo inclui 42 pacientes com diagnóstico histopatológico de mola hidatiforme completa benigna e com altura uterina superior a 12cm. Vinte e cinco casos foram esvaziados por curetagem uterinas e 17 por vacuoaspiraçäo. Do mesmo grupo de 42 pacientes, 27 receberam ocitocina para promover a dilataçäo do colo uterino e/ou expulsäo parcial da mola e 15 näo foram tratadas com ocitócico. A análise estatística mostrou que o uso de ocitócico prévio ao esvaziamento uterino é fator agravante do risco de evoluçä para neoplasia invasora, particularmente se associada a curetagem uterina

[Evaluation of different technics of uterine evacuation as a risk factor for invasive and metastatic trophoblastic neoplasms]. / Avaliação de diferentes técnicas de esvaziamento uterino como fator de risco para neoplasia trofoblástica invasora e metastática.

A study was conducted to determine the effect of the form of uterine evacuation (curettage or vacuum aspiration) and of the use of oxytocin on the incidence of invasive/metastatic gestational trophoblastic neoplasia among patients with a diagnosis of molar abortion. The study was conducted on 42 patients with a histopathological diagnosis of benign complete hydatidiform mole and with a uterine height of more than 12cm. Twenty-five patients were submitted to uterine evacuation by curettage and 17 to uterine evacuation by vacuum aspiration. Twenty-seven of the same 42 patients received oxytocin to promote dilation of the cervix and/or partial mole expulsion, and 15 were not treated with this drug. Statistical analysis showed that the use of oxytocin before uterine evacuation was a factor contributing to a higher risk of development of invasive neoplasia, especially when associated with curettage of the uterus.